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Loss per share (Tables) | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
Schedule of basic and diluted net loss per share |
|  | Years ended December 31, |
(In thousands of US$ except share data and per share data) |  | 2020 |  |  | 2021 |  |  | 2022 |
Numerator: |  |  |  |  |  |  |  |  |
Net loss |  |  | (63,415 | ) |  |  | (46,041 | ) |  |  | (19,853 | )
Add: Accretion of Series A Preferred Shares |  |  | (1,293 | ) |  |  | — |  |  |  | — |
Income allocation to participating preferred shareholders |  |  | — |  |  |  | — |  |  |  | — |
Net loss attributable to ordinary shareholders of the Company for computing basic and diluted net loss per share |  |  | (64,708 | ) |  |  | (46,041 | ) |  |  | (19,853 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of ordinary shares outstanding used in calculating basic and diluted net loss per share |  |  | 259,852,204 |  |  |  | 285,979,036 |  |  |  | 312,485,140 |
Basic and diluted net loss per ordinary share |  |  | (0.25 | ) |  |  | (0.16 | ) |  |  | (0.06 | )
Schedule of anti-dilutive instruments for diluted earnings per share |
|  | Years ended December 31, |
|  | 2020 |  |  | 2021 |  |  | 2022 |
Restricted Shares |  |  | — |  |  |  | 2,916,100 |  |  |  | 7,970,930 |
Share options awards |  |  | 22,298,757 |  |  |  | 19,225,361 |  |  |  | 18,004,940 |
Total |  |  | 22,298,757 |  |  |  | 22,141,461 |  |  |  | 25,975,870 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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